A feeding device includes a fluid reservoir and a nipple configured to be attached to the fluid reservoir. The nipple includes a body portion defining a compartment configured to contain a liquid so as to mimic a feel of a mother's breast. The body portion comprises a nipple tip comprising a fluid outlet. The nipple includes a base member attached to the body portion, the base member including an attachment portion configured to attach the nipple to the fluid reservoir. The base member comprises a fluid inlet in fluid communication with the fluid reservoir. The nipple includes a fluid passageway extending through the compartment from the fluid inlet to the nipple tip, where the fluid passageway allows fluid to flow from the fluid reservoir to the fluid outlet. A valve member positioned on the base member adjusts a flow rate of fluid from the fluid reservoir into the fluid passageway.